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1.I-OND UKUTHOLA ISIKHATHI ESIPHAKATHI SOKUTHOLAKALA KAKHULU KAKHULU KANYE NEZIMALI ZE (CC) Cardlocarbons, (HC) Hydrocarbons kanye (NOX) Nitrogen oxides egesi yokuphelelwa yigesi, izimoto ze-EFI kumele zisebenzise abaguquli bezindlela ezintathu ze-catalytic. Kodwa-ke, ukuze usebenzise ngempumelelo i-converter yendlela emithathu ye-catalytic, kuyadingeka ukulawula ngokunembile isilinganiso se-air-fuel ukuze ngaso sonke isikhathi kusondele kakhulu kwisilinganiso samafutha e-theoretical air-fuel. I-Catalyst ivame ukufakwa phakathi kwe-malifold eqeda amandla kanye nesimungulu. Inzwa ye-oksijini inesimo sokuthi i-voltage yayo ekhishwa ngokuzumayo ishintsha ngokuzumayo eduze kwesilinganiso se-theoretical air-fuel ratio (14.7: 1). Lesi sici sisetshenziselwa ukuthola ukugxila kwe-oksijini ephepheni amandla okuphelelwa yi-overgen futhi ukuyondla kwikhompyutha ukulawula isilinganiso samafutha e-air-fuel. Lapho isilinganiso sangempela somoya somoya siba ngaphezulu, ukugcwala komoya-mpilo ekwandiseni igesi ephumayo futhi inzwa ye-oxygen yazisa i-ECU yesifundazwe sengxube (amandla amancane e-electromotive: o volts). Lapho isilinganiso samafutha e-Air-Fuel siphansi kunesilinganiso se-theororetical air-fuel ratio, ukugcotshwa komoya-mpilo kugesi ophelelwe yi-overgen (isimo se-oxygen (amandla amakhulu we-electromotive: 1 volt) aziswe kwikhompyutha ye-ECU.

I-2.Eculu ahluleli ukuthi isilinganiso somoya-we-air-fuel siphansi noma siphakeme ngokwe-electromotive Force umehluko kusuka enzwa ye-oxygen, futhi ulawula isikhathi sokulimala kaphethiloli ngokufanele. Kodwa-ke, uma umsunguli we-oxygen enobuhle futhi amandla e-electromotive akhishwe akwejwayelekile, ikhompyutha ye-ECU ayikwazi ukulawula kahle isimo se-air-fuel. Ngakho-ke, inzwa ye-oksijini nayo ingangenza iphutha lesilinganiso samafutha ophethiloli esibangelwa ukugqokwa kwemishini nezinye izingxenye zohlelo lwe-EFI. Kungashiwo ukuthi inzwa kuphela "ehlakaniphile" ohlelweni lwe-EFI.

3.Umsebenzi we-sensor ukunquma ukuthi ngabe kukhona i-oksijini engapheli enjini ephumayo ngemuva kokuhlangana, okungukuthi, okuqukethwe komoya-mpilo, futhi uguqule okuqukethwe kwe-oxygen kusiginali ye-voltage, ngakho-ke injini ikwazi ukubona ukuthi i-enjini ilawulwa yi-Air Factor njengenjongo; Qinisekisa ukuthi i-converter ye-catalytic enezindlela ezintathu inokuguqulwa okukhulu kwama-hydrocarbons (HC), i-carbon monoxide (co) kanye ne-nitrogen oxides (nox) kugesi ophelelwe amandla, futhi uguqule futhi uhlanze ama-pollaturants akhishwe kakhulu.

Isingeniso Sokusetshenziswa

Izinzwa ze-oksijini zisetshenziswa kabanzi ku-petroleum, embonini yamakhemikhali, amalahle, ama-metalmalk, ukuvikelwa komlilo, ukuphathwa komoya, ukuphathwa kwezimoto, ukubhekwa kwemoto kanye neminye imikhakha.